Coming off a very fresh divorce he is probably re-evaluating his life and he is used to telling a Doctor how he is feeling regularly.
But who doesn't want to tell other people, "Don't be a Turd!"
Chris Pratt is one of the few that for a few years has been known to be a "our guy". Maybe not as brusque as Clint Eastwood, but still someone that pisses off his liberal coworkers.